MacDon M2170 Operator's Manual page 256

9. To connect quick couplers, connect the hydraulic hoses to a
windrower with quick coupler fittings as follows:
a. Connect disc pressure hose (A) to coupler (B). Torque
the connection to 216 Nm (159 lbf·ft).
b. Connect disc return hose (C) to coupler (D). Torque the
connection to 216 Nm (159 lbf·ft).
c. Connect case drain hose (E) to fitting (F), with the relief
valve pointing towards the ground.
NOTE:
If necessary, loosen fitting (F) and retighten it to ensure
that the relief valve is pointing straight down.
d. If connecting to a grass seed header, proceed to Step
10, page 232. Otherwise proceed to Step
10. For grass seed headers (GSS), connect the four additional
hydraulic hoses supplied with the grass seed version of the
header as follows:
a. Connect the hose (green cable tie) with female quick
coupler (A) to coupler (B) on the windrower frame.
b. Connect the hose (yellow cable tie) with male quick
coupler (C) to coupler (D) on the windrower frame.
c. Remove the cap (not shown) from inboard bulkhead
fitting (E). Connect hose (F) (red cable tie) to inboard
bulkhead fitting (E).
NOTE:
The other end of hose (F) connects to the grass seed
module drum on the left side of the header.
d. Remove the cap (not shown) from outboard bulkhead
fitting (G). Connect hose (H) (blue cable tie) to inboard
bulkhead fitting (G).
NOTE:
The other end of hose (H) connects to the grass seed
module drum on the right side of the header.
262170
OPERATION
11, page 233.
Figure 4.230: Quick Couplers
Figure 4.231: Grass Seed Header Hydraulic
Connections
232
E
C
A
F
B
C
G
D
D
B
A
E
F
H
Revision A